

However, some allow you to use Numpad inputs by pressing down a modifier key, which is often known as the function or Fn key. Many of today’s laptops don’t have a separate numeric keypad. That’s because instead of pressing 4 in the Numpad while the ALT key is held down, your Web browser translates what you’re pressing as ALT plus the left arrow key, which is the standard keyboard shortcut for the Back button.

For example, when you hold down the ALT key and then press 4 in the Numpad with Num Lock turned off while using a Web browser like Google Chrome, you’ll be taken to the previous page. This is due to the keyboard shortcuts that are integrated into these programs. However, if you haven’t enabled your keyboard’s Num Lock key, then typing an ALT Code could create some rather unexpected results, especially when you use certain applications together with it.
